Does this plate dates from the kangxi reign?
Looks good to me. I think Kangxi is a good guess, but I've seen similar pieces also dated to Yongzheng/Qianlong.
The underside is typical Jiaqing, except that the bamboo decoration more often than not is red. However, I have reservations about the main decoration. It looks odd to me.
I agree Peter, I can't tell if they are birds or bats and the lotus design looks strange.